Across
- 2. Rocks (with C) break down and wash into water
- 3. Ammonium converting to nitrates
- 7. Denitrification puts N2 gas back into the ...
- 8. Most abundant gas in the atmosphere
- 14. Organisms most responsible for converting N into different forms
- 15. Producers take up usable N forms through...
- 16. Plants take in CO2 through...
- 17. Geologic structure that can vent CO2 from underground into air
- 18. Combustion is when organic materials are...
- 20. Movement of CO2 between water and air depending on concentrations
Down
- 1. Conversion to ammonia form of N
- 4. The most common GHG emitted by humans
- 5. All organisms release CO2 through...
- 6. Heterotrophs must get their N through...
- 9. This converts N2 gas to a solid form
- 10. Effect that occurs when GHGs trap infrared radiation
- 11. Reservoir for C and N that includes all water on Earth
- 12. Reservoir for C and N that includes all living organisms on Earth
- 13. C and N are released from dead organisms through...
- 19. Type of fuels that are formed from ancient organisms